Device for converting motion



(No Model.)

S. O. CAMPBELL.

DBVIOE FOR CONVERTING MOTION. No. 279,513. Patented June 12,1883.

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SOLON O. CAMPBELL, OF VAN \VERT, IOWA, ASSIGNOR .OF ONE-HALF TO ELIJAH \V. CAMPBELL, OF FORT \VORTH, TEXAS.

DEVICE FOR CONVERTING MbTlON.

SPECIFICATION formingpart of Letters Patent No. 279,513, dated June 12, 1883.

Application filed January 29, 1883.

To all whom it may concern.-

Be it known that I, SOLON 0. CAMPBELL, a citizen of the United States, residing at Van Wert Station, in the county of Decatur and State of Iowa, have invented certain new and useful Improvements in Devices for Converting Motion; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to makeand use the same, reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification.

This invention relates to devices for converting motion of the character described in Letters Patent No. 260,452, granted to me July4, 1882; and it consists in the construction and arrangement of parts, as hereinafter more fully described and claimed.

In the annexed drawings illustrating the invention, Figure 1 is a side elevation of my improved devices for converting motion. Fig. 2 is a side view of the slotted pitman-head and its connections. Fig. 3 is a section on the line a: 1 of Fig. 2, and Fig. 4 represents sectional details of the wristblock.

Like letters of reference are used to designate the same parts in the several views.

Referring-to the drawings, it will be seen that the pitman-rods A A are connected by a cross-shaped head or frame, B, having a'vertical slot, (1, and a horizontal slot, 1), said slots intersecting each other centrally, as shown. The rods A A are securely bolted in the ends of the horizontal slot 1), and the ends of the vertical slot to are formed by packing-blocks c, that are detachably secured by means of bolts d, for the purpose hereinafter explained. A wrist-block, C, having grooved sides 6 e, is placed in the vertical. slot or guideway a. of the pitman head or frame B, so as to be capable of reciprocating therein. This wrist-block may be made solid, if desired, but is preferably formed of two grooved plates connected by studs ff, and a perforated central. portion, g, on which are formed lateral projecting sleeves or tubular bearings 71 [1, as shown in Figs. 3 and 4, the plates 6 6, central connecting portion, 9, and studs f f being made integral or otherwise. The sleeves h h of the wrist-block C afford a long bearing for the wrist-pin D, which connects the crank-arms E E, that are carried by a transverse shaft, F.

(No model.)

The shaft F and the rods A A are provided with suitable bearings in a frame, G, as shown, or they may be supported in any other suitable manner.

The operation of the device will be readily understood. \Vhen power is applied to the shaft F so as to rotate the same, the wristblock C will be caused to reciprocate within the vertical slot (roof the cross-shaped frame B, thus moving the frame from side to side and imparting a reciprocating movement to the rods A A; or, if power is applied to either of the rods A, the shaft F'will be caused to rotate.

It will be observed that the transverse slot 1) of the pit1nan-head B is of such width as to enable the pitman-head to pass over the shaft F without interference.

.It will also be seen that the length of the wrist-block C is such that its advancing end engages in the slot (1., above the longitudinal axis of the head B,and passes for a consider able distance therein before its opposite end leaves the slot below it, thus enabling the wrist-block to move with great steadiness and largely diminishing the liability of frictional wear. This advantage will be found to be important.

By detaching the blocks 0 c at the ends of the vertical slot a and filing or otherwise reducing the ends of said blocks, or by substituting shorter ones therefor, the sides of the vertical slot may be broughtcloser together, so as to take up any wear of the wrist-block or its guideway.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. The combination, with the slotted pitman-head B, of the grooved wrist-block C, having sleeves or tubular bearings l1 h for receiving a wrist-pin, substantially as described.

2. The combination of the pitman-rods A A, slotted head or frame B, having detachable blocks 0 c, the wrist-block C, wrist-pin D, cranks E E, and shaft F, substantially as de scribed.

In testimony whereof I affix my signature in presence of two witnesses.

SOLON OXVEN CAMPBELL. 

